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(No Model.)

B. J. DOLAN. MACHINE FOR MAKING TIN CANS. No. 371,494. Patented Oct.11,1887.

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UNITED STATES PATENT EDXVARD J. DOLAN, OF PHILADELPHIA, PENNSYLVANIA,ASSIGNOR TO \VILLIAM HACKER, TRUSTEE, OF SAME PLACE.

MACHINE FOR MAKING TIN CANS.

SPECIFICATION forming part of Letters Patent No. 371,494, dated October11, 1887.

Application filed June 24, 1887. Serial No. 242,382. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD J. DOLAN, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inMachines for Making Tin Cans; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being bad to the accompanying drawing,and to thelettersand figures of reference marked thereon, whieh form a part of thisspecification.

My invention relates to improvements in machines for use in themanufacture of tin cans; and it consists in a machine adapted to crimpthe edge of the tin before the same is wrapped around the cylinder, andto complete the seam of the cylinder so formed during the period thatthe edges of the next sucing blank are being crimped, and by the samemovement of the die.

The invent-ion will be clearly understood from the followingdescription, when taken in connection with the accompanying drawing,which represents an end elevation of the mechanism which at the presenttime I deem the preferable form for carrying out my in- Vention.

In the said drawing, A represents a suitable bed, in the arms A of whichare formed suitable guides, a, in which reciprocates the die-holder B,which is caused to reciprocate vertically therein by any suitable means.(Not shown.) The lower face of this holder is recessed on curved lines,as shown at b, and in the upper central portion of the recess is thehammer C, which may form an integral part of the holder, as shown infull lines, or may be a separate piece and suitably secured thereto, asshown in dotted lines. In the bottom face of this holder, upon each sideof the recess therein, I form the transverse recess 0, in which fit thedies D, which are constructed to have a slight rocking motion therein.Within these recesses, back of the dies, I place suitable springs, d,which tend to keep said dies in their proper position.

The upper face of the bed A is recessed, as

shown, to provide room for the formers E E E, which may be of anysuitable construction, but preferably of the form shown, which issimilar to that shown in my Patent No.

345,284, dated July 13, 1886, and may be actuated by any suitable means,(not shown,) but preferably similar to those shown in my patent abovereferred to.

\Vithin suitable recesses in the projections a of the bed are securedthe dies F, as shown.

G is the cylinder around which the blank is clamped. It is provided uponits upper face with a longitudinal recess, g, for the reception of theseam as it is pressed by the hammer.

H is a stop to limit the movement of the blanks, which are fed in underthe reciprocating dies in any suitable way.

The operation is as follows: The parts being in the position shown inthe drawing, the blank is fed in until it is stopped by contact with thepin H, which stops it in the position shown, when the die-holder isbrought down i and the ends of the blank are eriniped. As the die-holderascends, the formers are brought into play and wrap the blank around thecylinder. The formers then recede into the position shown in thedrawing, and another blank is fed in. As the die-holder again descendsto crimp the ends of the blank last fed in, the crimped ends of theprevious blank, which is wrapped around the cylinder, are compressed bythe hammer 0. Thus it will be seen that at each downward movement of thedie-holder I crimp the ends of one blank and simultaneously compress theseam of the blank previously acted upon.

The die-holder and formers should be so timed as to insure their actionat the desired intervals.

The completed can'body is removed from the cylinder in any suitable way.

Having thus described my invention and set forth its merits, what Iclaim to be new, and desire to secure by Letters Patent, is

I. The combination, with two stamping dies, of a reciprocatingdie-holder carrying two cooperating dies, an intermediate hammer, and amandrel, as and for the purpose described.

2. In a device for the purpose described, In testimony whereof Iaffix mysignature inthe combination, with the bed and stationary presence of twowitnesses. dies the formers and the mandrel of the recipr ocating die-holder, the dies car ried there- EDWARD DOLAN' 5 by, and the hammercarried by said die-holder Witnesses:

between its dies, as and for the purpose speci- JOHN MtiLLEn, fied. J.O. M6LLER.

